baber/WOPTO huggingface dataset:
Patent GB-1505246-A (GB)
Title: Navigational aids
IPC: G06G7/78
Filed: 1975-04-11
Abstract: 1505246 Navigational instruments GRUNDY & PARTNERS Ltd 11 April 1975 [5 Feb 1974 23 July 1974] 05146/74 and 32568/74 Heading G1F [Also in Division G4]  An on-board navigational aid for preventing collision consists of an analogue computer for calculating and displaying the change in the "nearest approach distance" (p) to another vessel of known relative bearing, taking into account present speed, proposed speed alteration, proposed course alteration of "own" vessel and the time for which such proposed alteration is to be held. The computer may also take into account the range of the other vessel and may calculate a new value of p from a knowledge of the existing value derived e.g. from a radar display. The computer takes no account of the unpredictable changes in speed and course of the other vessel. In the headup, relative motion radar display of Fig. 1, the other vessel T has bearing # and range R=OP, and the "nearest approach distance" for present speed u and present course of own vessel V is given by p=OX. In the lower part of the diagram, a triangle of velocities O'CO shows present speed u, proposed speed alteration v and proposed course alteration A. The distance y=O D represents rate-of-change of p and by geometrical analysis (set forth in detail) this is given by the approximate equations:- The first Formula is preferred since the second one takes no account of R and p. The resultant new value of p is given by adding yt to the present value, where t is the time for which the proposed alterations are held. The computer of Fig. 4 derives p + yt using a value of y given by the first formula. Inputs u and v are set-up on the pots. P6, P5 respectively and the angles A and (A-#) on the resolves Re2, Rel. The two resolvers have ganged shafts so that # is set in both simultaneously. Rotation of the body of resolver Rel through angle A results in setting of (A-#) in this resolver. The sine and cosine outputs of the resolvers are both fed to respective adding amplifiers A4, A5, and a pot. P3 in the feedback path of A5 effects multiplication by I/R where R is the range input. Multiplication by p is effected by pot. P1 which is ganged to pot. P2, and the two halves of the expression for y are added by the amplifier A7. The time t is set in pot. P4 and the term yt added to p by the amplifier A8. The case of a divergent (instead of convergent) other vessel T is discussed. The bearing of such a vessel changes clockwise (instead of anti-clockwise) if navigation rules are obeyed, and this involves reversal of the value p which can by accounted for in the amplifier A9 and pot. P2. The value of y is also (conventionally) reversed to give a (conventional) negative value of the new p. For this purpose a switchable inverter A6 is included in the circuit. The Specification describes an input and display panel Fig. 3 (not shown). This incorporates a X4 output range switch. The computation may also be performed by a programmed digital computer connected to the input resolvers and pots. through an A/D converter.
Patent GB-212728-A (GB)
Title: Improvements relating to terminals for electrical transformers
IPC: H01H1/58
Filed: 1923-02-22
Abstract: 212,728. Hansell, J. B., Beesley, B., and Metropolitan-Vickers Electrical Co., Ltd. Feb. 22, 1923. Plug-boards.-A terminal for a transformer or other electrical apparatus comprises an insulating bushing 1 containing a number of electrically-connected sockets 5 arranged in coaxial alignment with a like number of insulated sockets 6, so that by inserting a metallic plug 16 into any pair of aligned sockets any desired insulated socket may be connected with the electrically-connected sockets. The sockets 5 are all carried by a metallic plate 2 which is provided with a central terminal 3 for reception of a line connection 4. The sockets 6 are separated from the sockets 5 by tubes 7 of hard rubber or the like, and are connected by leads 8, which pass out of the bushing 1 through grooves 12 in an end insulating plate 10, to tapping points on the transformer or other winding. The space within the bushing beneath the plate 2 is filled with insulating cement 13, a spacing tube 15 being placed between the bottom of the cement and the plate 10. The plug 16 comprises a rod 17 having a split lower end 18 to engage the sockets 6, the upper end of the plug being screw-threaded to receive a contact-member 20 having a slotted expanded portion 20<a> to engage the sockets 5. In a modification, the plug is screwed into or out of the sockets.
Patent GB-660299-A (GB)
Title: Improvements in or relating to a group of centrifugal separators
Inventor: FEIFEL EUGEN
IPC: B04C5/28
Filed: 1949-02-26
Abstract: 660,299. Centrifugal separators. WAAGNER-BIRO AKT.-GES. Feb. 26, 1949 [March 4, 1948], No. 5309/49. Class 23 Groups of cyclone separators for separating solids or liquids from gases or vapours are connected in parallel and arranged in columns, the axes of the separators being vertical or horizontal each group forming a wall. Each column may comprise several blocks, e.g. as in Figs. 1, 2. There the gas to be cleaned enters ports 11, leading to cyclone chambers 12, and dust is discharged through slots 13 leading to a common chamber 14. Cleaned gas is led through ducts 16 to an upper chamber. Fig. 3 shows another arrangement the cyclones 12, each extending axially between two walls, discharging dust into a common chamber 26. The separators and chamber wall may be of metal or non-metal and the crosssectional shapes of the columns may be other than circular.
Patent GB-180040-A (GB)
Title: Improvements in sparking plugs for internal combustion engines
IPC: H01T13/46
Filed: 1921-02-16
Abstract: 180,040. Brõgger, W. Feb. 16, 1921. Sparking-plugs.-A ball 7, retained by the partly closed end 5 of the casing 2, is raised by the engine compression so as to seat itself against the end 15 of the insulator, where it is within sparking- distance both of the casing and the conical end 22 of the central electrode. Scavenging or the introduction of starting-fluid may be effected by a longitudinal passage 24 in the electrode. This passage may be axial or peripheral and may be used for starting in conjunction with the cupped end of the binding nut on the electrode. The insulation may be in one piece or may consist of two coaxial sleeves. It may be cooled by way of openings 31 in the gland 30.
Patent GB-122552-A (GB)
Title: Improvements in Shears, Scissors and the like.
Inventor: FERRARI RODOLFO
IPC: B23D29/02
Filed: 1918-03-28
Abstract: 122,552. Ferrari, R. March 28, 1918. Scissors and hand shears.- The blades of a pair of handshears, scissors, &c. are D- shaped in cross-section, as shown in Fig. 4, and the cutting-edges a<1>, b<1> are curved longitudinally as shown in Fig. 1. The rear surfaces a<2>, b<2>, which run from the cutting - edges a<1>, b<1>, are curved away from the cutting plane, thus forming a clear gap between all parts of the two blades, except at the cutting point and at the roots of the blades. Lubrication of the bearing-surfaces adjacent the pivot c is ensured by grease-retaining depressions g. The end of the handle c may be formed as a punch h, Fig. 6, a projection i being provided to receive blows of a hammer. The end of the handle f, Fig. 1, may be arranged to serve as a screwdriver.
Patent GB-704220-A (GB)
Title: A new or improved method of making furniture or the like
Inventor: MORRIS RICHARD VENABLES
IPC: A47C3/16
Filed: 1952-03-03
Abstract: 704,220. Furniture frames. MORRIS, WILKINSON & CO., Ltd. June 1, 1953 [March 3, 1952], No. 5515/52. Class 52(2) A method of constructing furniture such as hollow stools &c. comprises connecting two or more independent rigid frames by a robust pliable sheet adapted to constitute the side walls of the furniture. As shown two independent rigid frames 1, 2 and 1a, 2a are interconnected by a robust pliable sheet. Said sheet 4 may be covered by a flexible fabric 5 or the like such as plastic, the fabric 5 being turned over the sheet 4 at one edge and glued while at the other edge a part 7 is left uncovered. A notch 6 at each upper and lower end allows the part 7 to be positioned between the frame members 2, 2a and not protrude therefrom.
Patent GB-1136460-A (GB)
Title: Improvements in or relating to air filter systems
IPC: F24F13/28
Filed: 1967-02-06
Abstract: 1,136,460. Valves. MICHIGAN DYNAMICS Inc. 6 Feb., 1967 [7 Feb., 1966], No. 5532/67. Heading F2V. [Also in Division B1] The air intake circuit of a turbine engine in a helicopter comprises a filter 22, 24, which in one selected condition of the circuit is automatically by-passed in response to clogging, while other selected circuit conditions respectively hold the by-pass open or closed irrespective of clogging. In Fig. 3, alternate filter panels 22 are pivoted on filter panels 24 at 28 and are moved to open the by-pass passage, but in Fig. 5 (not shown) a similar construction comprising non-filtering panels is arranged in parallel with fixed filters. Spring 40 biases the panels 22 towards the open position and pneumatic motor 32 holds them closed if solenoid valve 36, 38 is energized, whereby the system is fail-safe. A selector switch (S1 (Fig. 4, not shown) has a position (A) in which a differential pressure switch (S2), connected between ambient atmosphere and the downstream side of the filter, is able to de-energize valve 36<SP>1</SP>, 38, a position (B) in which the valve is necessarily de-energized and a position (C) in which the valve cannot be de-energized. The circuit includes means for keeping valve 36<SP>1</SP>, 38 de-energized even after the filter panels have opened. Lamps (L1, L2) indicate the state of switch (S2) and the state of the filter panels, which is monitored by contact switch S3. The lamps (L1, L2) and switch (S1) are located on the helicopter control panel.
Patent GB-500676-A (GB)
Title: Improved mattress for beds, for furniture for sitting and reclining upon and the like
IPC: A47C23/15
Filed: 1938-02-22
Abstract: 500,676. Spring surfaces. GLOMB, G. A., VEERMAN, L. J., KUIPERS, K., FOKKENS, H., HOOGSTINS, E., and WIJBENGA, P. Feb. 22, 1938, No. 5546. Convention date, Aug. 20, 1937. Drawings to Specification. [Class 52 (iv)] A mattress or seat surface consists of interlaced straps of rubber insertion, the textile insert being cut on the bias so as to provide limited extension.
Patent GB-929195-A (GB)
Title: A transportable battery for live poultry or the like
IPC: A01K31/00
Filed: 1961-02-15
Abstract: 929,195. Battery cages for poultry. F. W. BAKER. Feb. 21, 1962 [Feb. 15, 1961], No. 5573/61. Class 5(2). A transportable battery of cages comprises rectangular frames 2 of angle irons interconnected by longitudinal members 5-8 and vertical slat members 9 fixed to the members 5-7 to define a central passageway, the members 5 being bolted to cross bearers 10 on the floor of a road or rail vehicle. Stacks of cages 11 are supported on boards 12, the cages being individually bolted to the slats 9, and a roof 14 having ventilating openings 18 is hooked on to the members 7, 8. Each cage comprises a base mesh 20 to which is welded a mesh 21 forming the sides, top and back, and a pivoted door 22, upstanding lugs 25 being welded to the top of the cage to facilitate stacking. Sheets 29 of plastics material serve as a floor. Brackets 30 are mounted on the framework and swivel between an in-use position in which they support planks 38 and an out-of-use position in which they lie flush with the framework sides. Blinds 19 may be suspended from the roof of the framework.
Patent GB-525422-A (GB)
Title: Improvements in dials for indicating instruments
IPC: G01L19/08
Filed: 1939-02-20
Abstract: 525,422. Indicating instruments. ASKANIAWERKE AKT.-GES. Feb. 20, 1939, No. 5649. Convention date, Feb. 19, 1938. [Class 106 (iv)] A rotatably arranged annular dial, especially for the reference pressure indication of barometric altimeters has the scale arranged on at least two scale discs which are arranged one above the other, the upper one of which is provided with a reading window, and the scale discs made movable successively in such a manner that the scale arranged on the discs can be read continuously. In the altimeter shown, a needle 10 driven from the instrument 9 works over a fixed scale 12 of heights provided with a window 13 through which a millibar scale on discs 14, 15 may be viewed. The disc 15 is fixed to the instrument 9 while the disc 14 rotates on a bush 20 arranged around the needle spindle 7. The discs 14. 15 are of the same diameter and are toothed on the periphery to engage a pinion 17 carried by an arm 18 fastened to the bush 20 and having a resilient finger 21 engaging a recess 22 in the disc 14. A pin 23 on the altitude scale 12 engages a slit 24 in the lever 18 thus fixing the lever relatively to the casing. The disc 14 carries a stop 25 which after the disc 15 has made one revolution is engaged by a stop 26 on the disc 15 and from then on is carried around therewith. A gap 27 in the periphery of the disc 14 and engaged by the pinion 17 ensures the discs moving together. Instead of a pinion a spring may be used which is tensioned as soon as the disc 14 is moved and keeps the stops in contact on the return movement. A spiral slot guide, not shown, is provided between the instrument 9 and the casing to limit their relative movement.
Patent GB-367567-A (GB)
Title: An improved grapple for raising submarines and the like
IPC: B63C7/20
Filed: 1931-02-23
Abstract: 367,567. Load engaging. SCHILL, L., P.O.B. 502, Haifa, Palestine. Feb. 23, 1931, No. 5677. [Class 78 (iv).] A grapple 10 for raising submarines and the like is provided with an electricallydriven traveller 8 runing on a cable 3 which is raised from the ship 1 by means of a buoy. The cable 3 is attached to a rope 7 on the floating pontoon 5, and the traveller 8 descends, taking with it a lifting-cable 9, until a feeler 11 strikes the submarine. The traveller comprises a submersible motor in a watertight enclosure, and the motor has a hollow shaft through which the cable 3 passes.
Patent GB-415336-A (GB)
Title: Attachment for sewing machines
IPC: D05B37/08
Filed: 1934-02-21
Abstract: 415,336. Sewing machines. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) Feb. 21, 1934, No. 5688. [Class 112.] The platen roller 26 of a sewing-machine pinking attachment is mounted on an eccentric shaft 32 held in a split hub 33. Adjustment of the roller is effected by loosening a screw 34 and turning the shaft. The cutter 24 is actuated from the needle-bar 11 by a lever 9, pawl and ratchet wheel 13, 15 and gearing 17, 19.
Patent GB-288567-A (GB)
Title: Improvements in or relating to compound wound continuous current dynamo electric machines
IPC: H02P9/12
Filed: 1927-08-10
Abstract: 288,567. Constructions Electriques de France. April 12, 1927, [Convention date]. Divided on 288,559. Improving commutation, auxiliary means for; protective devices, auxiliary. - To avoid disturbances in the commutation of a. compound wound continuous - current machine under variable conditions of load or voltage, a reactance is provided in the shunt excitation circuit. As shown, a reactance 5 is connected in series with the armature and the series field coil 3, and the circuit of the shunt field winding 4 includes the reactance. The voltage at the terminals of the winding 4 is the sum of voltages due to the armature and the reactance coil so that under variable conditions the effect of the reactance coil compensates for the effect of mutual inductance between the windings 3,4, and therefore the flux can follow rapidly the variations of the series ampere turns.
Patent GB-1468320-A (GB)
Title: Friction article and method of assembly
IPC: F16D69/00
Filed: 1975-02-11
Abstract: 1468320 Friction members for disc brakes or clutches ABEX CORP 11 Feb 1975 [4 April 1974] 5842/75 Headings F2E and F2C [Also in Division B3] The friction pad of a disc brake or clutch is resistance projection welded to a second pad, or other supporting member, through an aperture in the carrier plate. As shown, pads 12, 14 have backing plates 22 formed with projections 28 which fit into the aperture and have smaller projections 30. During assembly (Figs. 3 and 4, not shown) initial abutment of projections 30 causes spacing between the backing and carrier plates but the latter come into contact at the completion of the welding process when projections 30 have fused. One pad may be replaced by a metal insert (Fig. 5, not shown), more than one welded connection may be provided (Fig. 6, not shown) and the projections may be separately formed from the backing plate. In the latter case a single insert of the form shown in Fig. 8 may be disposed in the aperture and welded to the backing plates of oppositely disposed pads at its extremities 58. The pad is made from sintered copper alloy or other metallic friction material.
Patent GB-1286143-A (GB)
Title: The manufacture of ketal sugars
Inventor: HINDLEY NATHAN CHADWICK
IPC: C07H9/04
Filed: 1969-02-04
Abstract: 1286143 Ketal sugars ROCHE PRODUCTS Ltd 15 Jan 1970 [4 Feb 1969] 5861/69 Heading C2C Ketal sugars are prepared by reacting a sugar of the general formula wherein x is an integer of 1 to 5 and y and z are each 0 or 1, with at least one mole per mole of sugar of a ketone or aldehyde of the formula R 1 COR 2 , wherein R 1  and R 2  are each H, C 1-7  alkyl, aralkyl or aryl or together they represent a C 2-7  alkylene radical, in the presence of ferric chloride or ferric bromide preferably in catalytic amounts while continuously removing water from the reaction medium. The process is preferably performed in a water-immiscible organic solvent such as pentane with distillation of a watersolvent mixture from the reaction mixture and recycling of the solvent. Preferably 0.1-10% by weight of the catalyst is used. In the examples sorbose is converted to 2,3 : 4,6- diacetone-L-sorbose, sorbitol to 1,2 : 3,4 : 5,6- triacetone-D-sorbitol and α-D-glucose to 1,2 : 5,6-diacetone-D-glucofuranose.
Patent GB-900927-A (GB)
Title: Method and apparatus for detecting concealed faults or joints in multiple-layer sheet materials
IPC: G01N27/82
Filed: 1959-02-20
Abstract: 900,927. Sheet-delivery apparatus. JAGENBERG-WERKE A.G. Feb. 20, 1959 [March 13, 1958], No. 5906/59. Class 100 (1). [Also in Groups XXXVI, XL (b) and XL (c)] In a method of indicating or rejecting concealed joints or faults in multi-layer webs of paper or the like, the joints or faults are previously provided with a marking arranged to generate a signal when the sheets are moved past a detector. In Fig. 1, webs of paper from a number of rolls 1 are assembled together by rollers 2 before being cut into individual stacks by rotating cutter drums 4. The stacks are passed by belts 5, 6 into a container 7. When a fault or joint in any one web passes the sensing head 8, an electrical impulse is generated to energize the electromagnet 12 which moves the deflector blade 9 so that the defective stack is deposited in container 13. Joints or faults in each paper roll 1 are previously marked with a piece of adhesive metal foil or other metallizing. The two sides of the sensing head 8 may take the form of plates of a charged capacitor so that a variation in voltage in an amplifying circuit is produced when such a fault passes the head. Alternatively, the paper webs may pass between the primary and secondary windings of a transformer fed with high-frequency alternating voltage. Fig. 4 shows an arrangement for use with sheets in which the joints or faults have previously been rendered ferromagnetic. When such a fault passes the polepieces of the electromagnet 20, a voltage pulse is induced in the coil 21 which, after amplification, can energize the electromagnet 12. In another arrangement, the change in absorption of α- and #-rays, #-rays or X-rays is detected by a Geiger counter and converted into the required electrical impulse. Alternatively, the joints or marked faults may be indicated by the use of radioactive isotopes. In another arrangement, the variation in the absorption or reflection of sound waves is utilized.
Patent GB-512242-A (GB)
Title: Magneto strictive devices and electrical and electro-mechanical systems therefor
IPC: H03H9/62
Filed: 1938-02-25
Abstract: 512,242. Magneto-strictive devices. STANDARD TELEPHONES & CABLES, Ltd. (Western Electric Co., Inc.). Feb. 25, 1938, No. 6024. [Class 40 (iv)] [Also in Group XL] A magneto-strictive device comprises a coil divided into two halves 24, 24, Fig. 1, coupled by a laminated magneto-strictive element 21 mounted at its centre by phenol fibres 22 and polarized by magnets 26, the coupling factor between the coils and element exceeding 1 per cent., and the element being stepped, Fig. 3, to produce two non-harmonically related critical frequencies. The Specification describes in detail the use of the device as an electrical filter, but also envisages its use in loudspeakers, microphones and relays. Specification 463,848, [Group XL], and U.S.A. Specifications 1,828,454, 1,969,571, 1,997,193 and 2,002,216 are referred to.
Patent GB-632683-A (GB)
Title: Improvements in or relating to a hydantoin and method for obtaining the same
IPC: C07D233/74
Filed: 1947-03-03
Abstract: 1-Allyl-5-phenyl-hydantoin is obtained by reacting benzaldehyde cyanhydrin with allylamine, treating the resulting a -allylaminophenylacetonitrile with potassium or other alkali metal cyanate in acid solution to give a N-(a -cyanobenzyl)-N-allyl urea, and boiling the latter with a mineral acid (e.g. hydrochloric) to produce the hydantoin; this may be converted into an alkali metal salt by treatment with the corresponding hydroxide or ethoxide.  The reaction between the cyanhydrin and allylamine is preferably carried out in an inert solvent (e.g. ether) which is then removed, e.g. by distillation. The reaction of the product with the cyanate is preferably effected below 10 DEG  C. in the presence of a strong mineral acid, e.g. hydrochloric.  Experimental details are given of the preparation of the hydantoin, together with its purification by conversion into the sodium salt and reprecipitation with acid. The products are stated to be anti-convulsants.
Patent GB-1124004-A (GB)
Title: Braking device for vehicle wheels
IPC: F16D65/08
Filed: 1966-02-11
Abstract: 1,124,004. Disc brake, drum brake, cooling. M. BARALE and B. ROASIO. 11 Feb., 1966 [13 Feb., 1965], No. 6044/66. Heading F2E. A braking device for a vehicle wheel in which two movable members are provided with friction linings and are movable to engage one or more surfaces on an element secured to the wheel, has the friction linings and the element provided with a plurality of grooves at their interengaging faces to create a wedge like effect between the surface. Each friction lining is provided with at least one additional groove disposed transversely of the first mentioned groove and preferably at an angle of from 30 to 60 degrees thereto to facilitate cooling and to discharge outwards any particles of foreign matter which collect during the functioning of the brake. The specification describes a disc and a drum brake provided with these grooves.
Patent GB-1530775-A (GB)
Title: Agricultural machine of the mower or mower-conditioner type
IPC: A01D34/76
Filed: 1977-02-14
Abstract: 1530775 Mowers KUHN SA 14 Feb 1977 [25 Feb 1976] 06080/77 Heading A1F In a mower-conditioner, discs 16, 19 carrying cutters 20 are mounted on a box 17 containing pinions 45 by which the discs are drivingly interconnected for rotation; the input drive to the discs being via a drive shaft 11 from a gearbox 10, said shaft engaging a coupling 13 mounted on the disc 16. The box 17 and discs 16, 19 thereon are pivotally mounted in the mower frame on arms 23 transfer material may be glass or quartz beads. about an axis 22, the positioning of the coupling 13 being such that pivoting of the box 17 couples or uncouples the drive shaft 11 with the disc 16.